I am always curious about tube gear, especially integrated amps. But the repeated expense of tube replacement and maintenance turns me away. I recently bought a McIntosh MA352 hybrid integrated amp (200 watts). Since I was under the impression that the preamp stage was more dominant in determining SQ, I thought it was a reasonable compromise. In another room I have a Pathos hybrid amp (about 80 watts). Am I hearing "tubey" sound from these devices? I don't know because i have never developed an ear for pure tube equipment. And at my age, I don't think I could discern a difference. But dissing hybrid amps as really solid state is a cheap shot. In my other room I have a Hegel 590 SS integrated amp. I'm totally happy with my complete setups.
Why is solid state more popular when tubes are better?
Yes tubes are more involved and require periodic maintenance. Hybrid tube components need not apply, these are really solid state.
Tubes are better for multiple reasons and yet the world and the trade prefers solid state. Those rare audio shops that are geared toward stereo listening and serious connoisseurs tend to Focus more on tubes. Those in business who like to improve volumes tend to offer solid state. All the YouTube channels looking to improve their business tend to be solid state. Maybe because tubes require much more expertise to sell, and there's lesser and lesser to go around. Solid state is more of a fast food commodity.
Tubes are difficult for businesses due to all the maintenance and complexity so you see it less often. Much much easier to sell hybrids or solid state.